default or selected kernelversion does not have config value CONFIG_BATTERY_BQ27XXX_PLATFORM.
Result is shown for kernelversion 5.4.194
BQ27xxx HDQ support
configname: CONFIG_BATTERY_BQ27XXX_PLATFORM
Linux Kernel Configuration
└─>Device Drivers
└─>Power supply class support
└─>BQ27xxx HDQ support
In linux kernel since version 4.4 (release Date: 2016-01-10)
Say Y here to enable support for batteries with BQ27xxx (HDQ) chips.